EP 0839859 A3 19990107 - Method and apparatus for treating overspray

Title (en)

Method and apparatus for treating overspray

Title (de)

Verfahren und Vorrichtung zur Aufbereitung von Overspray

Title (fr)

Procédé et dispositif de traitement de l'excédent d'un produit de revêtement pulvérisé.

Publication

EP 0839859 A3 19990107 (DE)

Application

EP 97118860 A 19971030

Priority

DE 19643938 A 19961031

Abstract (en)

[origin: EP0839859A2] A process for reclaiming overspray from water based paints, occuring in a spray booth involves: a) collecting overspray in the booth water tank (7) where solid particles are formed; b) accumulating the water and solid particle mixture and mixing with a coagulating agent; c) pressing the coagulated material to remove water which is returned to the booth water supply; d) drying the resulting filter cake; e) driving out any residual water which is returned to the water supply leaving a dry filter cake. Process equipment includes a water tank (7) for collecting overspray from the spray booth (13); a flocculation chamber (1) with stirrer (14) and metering system (19) for adding coagulating agent; a press (3) for squeezing water out of the coagulated material; a trough (11) to collect water squeezed from a cake and supply it to a filtrate storage tank(5) and a dryer (15) for filter cakes.

IPC 1-7

C08J 11/00; C09D 7/00; B05B 15/12

IPC 8 full level

B05B 14/462 (2018.01); B05B 15/12 (2006.01); C08J 11/00 (2006.01); C09D 7/00 (2006.01)

CPC (source: EP)

B05B 14/462 (2018.01); C02F 11/148 (2018.12); C02F 2103/14 (2013.01); Y02P 70/10 (2015.11)

Citation (search report)

[A] EP 0549882 A2 19930707 - CLASMEIER HEINZ JOSEF [DE]
[AD] DE 3936974 C1 19900927
[A] EP 0574972 A1 19931222 - ENVILACK GMBH [DE]
[A] DE 4038706 A1 19920611 - IPSEN HARALD [DE]
[A] WO 9219686 A2 19921112 - AKZO NV [NL], et al
[A] WO 8606657 A1 19861120 - RUDROFF WOLF DIETRICH [DE]
[A] DE 4034596 A1 19920507 - HENKEL KGAA [DE]

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0839859 A2 19980506; EP 0839859 A3 19990107; EP 0839859 B1 20040114; AT E257849 T1 20040115; DE 19643938 A1 19980507; DE 59711209 D1 20040219; ES 2214579 T3 20040916; PT 839859 E 20040531

DOCDB simple family (application)

EP 97118860 A 19971030; AT 97118860 T 19971030; DE 19643938 A 19961031; DE 59711209 T 19971030; ES 97118860 T 19971030; PT 97118860 T 19971030